I'd like to add a feature, call it 'B', to a reservation after the reservation has been created without that feature, but with other features. The nodes in the reservation have features A,B,C defined.

Here's an example.  Reservation 'foo' with feature A available:

ubuntu@controller:~$ scontrol show reservation -o
ReservationName=foo StartTime=2017-06-15T14:39:09 EndTime=2017-06-15T15:39:09 Duration=01:00:00 Nodes=server1 NodeCnt=1 CoreCnt=1 Features=A PartitionName=debug Flags= TRES=cpu=1 Users=ubuntu Accounts=(null) Licenses=(null) State=ACTIVE BurstBuffer=(null) Watts=n/a
Node 'server1' with features A, B, and C:
ubuntu@controller:~$ sinfo --Node --long "%f"
Thu Jun 15 14:42:51 2017
NODELIST NODES PARTITION STATE CPUS S:C:T MEMORY TMP_DISK WEIGHT FEATURES REASON server1 1 debug* reserved 1 1:1:1 1 0 1 A,B,C none ubuntu@controller:~$
Attempt to update the reservation, adding a feature, fails:
ubuntu@controller:~$ sudo scontrol update ReservationName=foo feature=B
Error updating the reservation: Requested operation not supported on this system
slurm_update error: Requested operation not supported on this system

Should this be possible?

Thanks,
Tim


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